Constantine I, AD 307-337, AE follis. Arles, AD 316. 

IMP CONSTANTINVS PF AVG, laureate, draped and cuirassed bust right.
SOLI INVICTO COMITI M-F, Sol standing right, head left, raising hand and holding globe. 

Mintmark ARL Gamma. 

RIC VII Arles 102.

With permission of cgb.fr - e-Monnaies October 2018, Lot 137.